Kiali: Provides observability to the service mesh, visualizing what is going on in the mesh. For more information, see https://www.kiali.io.

Tracing: Handles and visualizes distributed tracing information, based on either Jaeger or Zipkin. We will use Jaeger. For more information, see https://www.jaegertracing.io.

Prometheus: Performs data ingestion and storage for time series-based data, for example, performance metrics. For more information, see https://prometheus.io.

Grafana: Visualizes performance metrics and other time series-related data collected by Prometheus. For more information, see https://grafana.com.